NEW QUESTION NO: 10
A customer is interested in transitioning their traditional infrastructure to the Cloud by implementing ViPR software-defined storage in an XtremIO environment. Which capabilities will EMC ViPR software-defined storage provide to XtremIO?
A. Delivers SaaS
Centralized management and monitoring
Chargeback and billing capabilities
B. Chargeback reporting capability
Centralizes reactive monitoring capability
Policy-driven configuration management
C. Automatically grows storage volumes
Slows growth of data
Centralized auto-deletes of aging files
D. Creates virtual storage pools
Automates disaster recovery
Replaces chargeback capabilities
Answer: A
Explanation/Reference:
EMC ViPR Controller is a software-defined storage platform that abstracts, pools and automates a data center's underlying physical storage infrastructure. It provides data center administrators with a single control plane for heterogeneous storage systems.
ViPR enables software-defined data centers by providing features including:
* Comprehensive and customizable platform reporting capabilities that include capacity metering, chargeback, and performance monitoring through the included ViPR SolutionPack References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 60

NEW QUESTION NO: 11
Based on XtremIO Data Protection, how many dedicated hot spare disks per X-Brick are required?
A. 0
B. 1
C. 2
D. 3
Answer: A
Explanation/Reference:
XtremIO Data Protection (XDP) doesn't require any configuration, nor does it need hot spare drives.
Insteadit uses "hot spaces" - free space in the array.
References: https://www.emc.com/collateral/white-paper/h13036-wp-xtremio-data-protection.pdf , page 23

NEW QUESTION NO: 12
A customer has recently deployed an XtremIO 20 TB two X-Brick cluster to run an existing instance of Oracle RAC previously leveraging VNX for back-end storage. The application environment uses a block size of 1 MB. Multiple tables are in use with the PARALLEL_DEGREE_POLICY variable set to AUTO.
The customer wants your help with tuning the DB_FILE_MULTIBLOCK_READ_COUNT parameter for best performance with XtremIO. Which values should be recommended for tuning the DB_FILE_MULTIBLOCK_READ_COUNT parameter in the Oracle RAC environment?
A. 8 or 16
B. 24 or 32
C. 64 or 128
D. 256 or 512
Answer: C
Explanation/Reference:
Oracle Database performs I/O on data files in multiples of the database block size (db_block_size), which is 8KB by default. The default Oracle Database block size is optimal on XtremIO. XtremIO supports larger block sizes as well. In the case of multiblock I/O (e.g., table/index scans with access method full), one should tune the Oracle Database initialization parameter db_file_multiblock_read_count to limit the requests to 128KB.
Therefore, the formula for db_file_multiblock_read_count is:
db_file_multiblock_read_count = 128KB / db_block_size
In our case the block size is 1 MB, so the formula db_file_multiblock_read_count is 1 MB/ 8KB = 1024/8
128
References: https://www.emc.com/collateral/white-papers/h13497-oracle-best-practices-xtremio-wp.pdf, page 21

NEW QUESTION NO: 13
What is a method to establish an XMCLI session?
A. Use the PuTTY SSH tool configured for the serial port and xmsupload credentials
B. Use the Telnet SSH tool configured on Port 443 and root credentials
C. Use the CLI terminal in the Administration tab and root credentials
D. Use the PuTTY SSH tool configured for Port 22 and xmsadmin credentials
Answer: D
Explanation/Reference:
The system's Command Line Interface (CLI) allows administrators and other system users to perform supported management operations. It is preinstalled on the XMS and can be accessed using the standard SSH protocol.
PuTTY is an SSH and telnet client.
The standard TCP port 22 has been assigned for contacting SSH servers.
You can login using the builtin xmsadmin account.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 50

NEW QUESTION NO: 14
A new 500 GB VM disk is created on a database that resides on an XtremIO LUN. The VMware administrator plans to provision the disk using the thick provisioned eager zeroed format.
How much physical XtremIO capacity will be allocated during this process?
A. 5 GB
B. 10 GB
C. 50 GB
D. None
Answer: D
Explanation/Reference:
XtremIO storage is natively thin provisioned, using a small internal block size. This provides fine-grained resolution for the thin provisioned space.
All volumes in the system are thin provisioned, meaning that the system consumes capacity only when it is actually needed. XtremIO determines where to place the unique data blocks physically inside the cluster after it calculates their fingerprint IDs. Therefore, it never pre-allocates or thick-provisions storage space before writing.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 22

NEW QUESTION NO: 15
A customer has recently purchased an XtremIO 10 TB single X-Brick cluster for an implementation of Oracle RAC. The customer wants your help with integrating Oracle with their new XtremIO cluster. The customer has three DATA disk groups, two REDO disk groups, and four FRA disk groups.
How many XtremIO LUNs should be assigned to the FRA disk groups?
A. 2
B. 4
C. 6
D. 8
Answer: D
Explanation/Reference:
Best practice is to use four LUNs for the DATA disk group to allow the host to use simultaneous threads.
The REDO and FRA disk groups should use two LUNs each.
References: https://community.emc.com/community/connect/everything_oracle/blog/2016/03/31/best- practises-of-vblock-on-xtremio-with-oracle-databases-part-i

NEW QUESTION NO: 16
A customer has a workload with the following attributes:
Generates 250,000 IOPs

100 TB in logical capacity

Read/Write ratio of 1:1

Random workload with 8 kB I/O size

Deduplication ratio of 2:1

Compression ratio of 2:1

Which XtremIO solution should be recommended to the customer?
A. 1×40 TB X-Brick
B. 2×10 TB X-Brick
C. 3×20 TB X-Brick
D. 4×10 TB X-Brick
Answer: C
Explanation/Reference:
XtremIO clusters with 60 TB of physical usable flash capacity can now logically support 360 TB or more of capacity at typical 6:1 data reduction (deduplication plus compression) ratios. Here we have a 4:1 reduction ratio, so 25 TB would be enough. The 250,000 IOP requirments indicates that we need at least two Bricks.

References: https://store.emc.com/en-us/Product-Family/EMC-XtremIO-Products/EMC-XtremIO-All-Flash- Scale-Out-Array/p/EMC-XtremIO-Flash-Scale-Out

NEW QUESTION NO: 17
When installing a physical XtremIO Management Server (XMS) station, which requirement must be met?
A. XMS must be able to access one of the management ports on one X-Brick storage controller in the cluster
B. XMS must be able to access only the management ports on the first X-Brick's storage controllers
C. XMS must be able to access all management ports on the X-Brick storage controllers
D. XMS must be able to access all management ports on at least two X-Brick storage controllers in the cluster
Answer: C
Explanation/Reference:
The XMS must access all management ports on the X-Brick Storage Controllers, and must be accessible by any GUI/CLI client host machine.
References: Introduction to the EMC XtremIO STORAGE ARRAY (April 2015), page 48

NEW QUESTION NO: 18
When using the XtremIO PoC Toolkit, what is the purpose of the Age phase?
A. Continuously write to a specific range of logical block addresses to test Flash durability
B. Overwrite each LUN multiple times to ensure they contain all unique data
C. Test the performance of the All-Flash array with non-production static data
D. Scatter writes across the entire array to simulate ordinary use of the system
Answer: D
Explanation/Reference:
Proceed with filesystem aging by doing random overwrite cycles.

NEW QUESTION NO: 19
A customer has a group of applications that need storage which can provide low response times. The total I/O requirements are 75,000 IOPs with a 4 kB block size. They will have 500 LUNs and need to keep 30 daily snapshots of each LUN.
What is the smallest XtremIO configuration that will meet their needs?
A. 1 cluster with 4 X-Bricks
B. 2 clusters with 2 X-Bricks each
C. 2 clusters with 1 X-Brick each
D. 1 cluster with 2 X-Bricks
Answer: D

NEW QUESTION NO: 20
You need to design an Oracle solution for a customer. Which XtremIO best practices should be used in Oracle environments?
A. Use a 512 byte LUN sector size for databases. Use Eager Zeroed Thick formatting for ESXi
B. Use a 4 kB LUN sector size for databases. Use Lazy Zeroed Thick formatting for ESXi
C. Align data on 4 kB boundaries. Use Thin formatting on ESXi
D. Align data on 4 kB boundaries. Use Lazy Zeroed Thick formatting on ESXi
Answer: A
Explanation/Reference:
The default setting for XtremIO volumes is 512e. It is recommended not to alter this in order to use 4K Advanced Format for Oracle Database deployments. There are no performance ramifications when using
512e volumes in conjunction with an Oracle database. On the contrary, 4K Advanced Format is rejected by many elements of the Oracle and Linux operating system stack.
References: https://www.emc.com/collateral/white-papers/h13497-oracle-best-practices-xtremio-wp.pdf, page 20
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